TeleGeography: Ethernet VPLS, EoDWDM interest grows, while IP/VPN expansion dips
HISTORICAL SPACE FREQUENCIES. The first satellite to orbit the Earth was Sputnik 1, launched by the Soviets in October 1957. It carried two radio beacons on frequencies of 20.005 and 40.01 MHz. The Soviets continued to use frequencies around 20 MHz and even some around 15 MHz for many subsequent missions. This tends to be used for uplinks of the satellites that downlink in the 137 - 138 MHz band. 2  149.95 - 150.05 MHz. 3  This is used by satellites providing positioning, time and frequency services, by ionospheric research and other satellites.
Consumer Satellite Product Overview Direct-To-Home (DTH) Satellite Television. At present time, there are 4 commercially available satellite television technologies: C-Band DIRECTV (Ku-Band + Ka-Band) DISH (Ku-Band) GlobeCast World TV (Ku-Band) These systems operate in 2 bands, or operational frequency ranges, assigned by the FCC for satellite broadcasting use. These are: C-Band (3.7-4.2 GHz) and high-power Ku-Band (12.2-12.7 GHz) and Ka-Band 18.3-18.8 GHz + 19.7-20.2 GHz